What is the poisoning of the DNS cache?
DNS cache poisoning is a technological problem in which the domain name system used to search for IP addresses for domain names is damaged and sends users who enter these addresses in their browsers to the wrong place. There are a number of ways to poison the DNS cache, from a harmful attack to an error in the configuration of the system. It represents a weakness for security because people with malicious code can use DNS poisoning to attack DNS cache poisoning to attack innocent Internet users.
When users enter the address as www.wisegeek.com in the browser, their computer is asked by a server that stores IP addresses to find out where the Wisegeek server is. The server provides information and directs the user's computer to Wisegeek. In DNS cache poisoning, the server provides incorrect information and sends users to an unintended location. Sometimes the address is simply invalid and the user cannot reach the site or hit another site by mistake, but in malicious attacks, the user can be sent to aA page containing malicious software such as spyware and web can automatically install this software if the user's computer is poorly secured. Infected viruses can find that even if the DNS server is accurate, their computers are still in a bad place when they enter the web address as a result of the virus.
When DNS cache poisoning occurs by accident due to poor installation or other problem, it is usually identified and repaired quickly. In cases where it is a malicious code, it may be more difficult to unfold. For example, a computer may be cheated to think that it is asking a server to get the right address when the virus actually replaces the IP address that leads the user to a completely different FERDER SITE. DNS cache poisoning can be a big problem when users try to go to trusted sites like their bank and cannot achieve them.
SecurityDeficiencies such as DNS cache poisoning are difficult to face, although new techniques are always evolving and antivirus programs regularly provide updates for viruses known to use attacks including DNS cache. Because people will find new ways to fight them, individuals who are interested in harmful activity will find ways to circumvent new security measures and force developers to return to the drawing board to find more tactics.